We shall value email usage

[john doe]

On 3/25/2021 12:34 PM, Klaus Ethgen wrote:
> Hi,
>
> Am Do den 25. Mär 2021 um 11:51 schrieb Bernhard Reiter:
>> To me the protected headers implementation Thunderbird is a step back,
>> as it leads to unnecessary data leaks (subject and cc) to other clients
>> with are OpenPGP/MIME compatible.
>
> Well, there is other..
>
> For example, if you start editing a mail with thunderbird and put it to
> drafts. Then finishing the edit with mutt. This will leak the following
> headers:
> - user-agent
> - x-mailer
> - x-mozilla-draft-info
> - x-enigmail-draft-status
> - x-account-key
> - x-identity-key
> - fcc
>
> Even when sending mails just from thunderbird, it leaks at least the
> user-agent header.
>
> Currently I configured my MTA to remove that headers for outgoing mails.

You can disable the usage of the user-agent in TB, one can only hope for
the others as well.

--
John Doe